Human SPINK1 Antibody

  • Specificity
    Detects human SPINK1 in ELISAs.
  • Source
    Monoclonal Mouse IgG2B Clone # 839305
  • Purification
    Protein A or G purified from hybridoma culture supernatant
  • Immunogen
    E. coli-derived recombinant human SPINK1
    Accession # P00995
  • Formulation
    Lyophilized from a 0.2 µm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
  • Label
  • Western Blot
    2 µg/mL
    See below
  • Simple Western
    100 µg/mL
    See below
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Data Examples
Detection of Human SPINK1 by Western Blot. Western blot shows lysates of human pancreas tissue. PVDF membrane was probed with 2 µg/mL of Mouse Anti-Human SPINK1 Monoclonal Antibody (Catalog # MAB7496) followed by HRP-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # HAF018). A specific band was detected for SPINK1 at approximately 6 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Detection of Human SPINK1 by Simple WesternTM. Simple Western lane view shows lysates of human pancreas tissue, loaded at 0.5 mg/mL. A specific band was detected for SPINK1 at approximately 6 kDa (as indicated) using 100 µg/mL of Mouse Anti-Human SPINK1 Monoclonal Antibody (Catalog # MAB7496). This experiment was conducted under reducing conditions and using the 12-230 kDa separation system. Non-specific interaction with the 230 kDa Simple Western standard may be seen with this antibody.
Preparation and Storage
  • Reconstitution
    Sterile PBS to a final concentration of 0.5 mg/mL.
  • Shipping
    The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
  • Stability & Storage
    Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
    • 12 months from date of receipt, -20 to -70 °C as supplied.
    • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
    • 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Background: SPINK1

SPINK1 (Serine Protease Inhibitor Kazal-type 1; also TATI and PST1) is a 6-7 kDa secreted polypeptide initially identified as a tumor-derived trypsin inhibitor. It is widely expressed and found in cells diverse as pancreatic acinar cells, columnar cells of the stomach, renal collecting duct epithelium, and ureteric transitional plus breast epithelium. SPINK1 is known to be secreted with pancreatic zymogens, and apparently inactivates prematurely-activated trypsin, thus protecting the pancreas from trypsin-mediated enzyme activation. It also is reported to regulate cell migration and proliferation, the latter effect attributed to its structural resemblance to EGF and its ability to bind to activate the EGFR. Mature human SPINK1 is 56 amino acids (aa) in length (aa 24-79). It contains one Kazal-like domain (aa 26-79) that possesses a potential proteolytic cleavage site between Lys41-Ile42. An 11-12 kDa form in SDS-PAGE has been reported for SPINK1, possibly reflecting dimerization. Mature human SPINK1 shares 66% aa sequence identity with mouse Spink3, the mouse equivalent to human SPINK1.

  • Long Name:
    Serine Peptidase Inhibitor, Kazal Type 1
  • Entrez Gene IDs:
    6690 (Human); 20730 (Mouse); 266602 (Rat)
  • Alternate Names:
    pancreatic secretory trypsin inhibitor; PCTT; PCTTSpink3; PSTI; PSTISerine protease inhibitor Kazal-type 1; serine peptidase inhibitor, Kazal type 1; serine protease inhibitor, Kazal type 1; SPINK1; Spink3; TATI; TATITumor-associated trypsin inhibitor
Related Research Areas
Secondary Antibodies
Description Application Cat# Citations Images  

Mouse IgG2B Antibody

Flow MAB0043  
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